Incandescent street-light.



No. 776,360. PATENTED NOV. 29, 1904. v. H. SLINAGK.

INGANDBSGENT STREET LIGHT.

APPLICATION FILED D110. 6, 1001. RENEWED JULY 25. 1904.

no MODEL. 3 SHEETS-SHEET 1.

No. 776,360. PATENTED NOV. 29, 1904. V. H. SLINACK.

INOANDESCENT STREET LIGHT.

APPLICATION FILED DEC. 6, 1901. RENEWED JULY 25, 1904.

no MODEL. 7 s sums-sum a.

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(IX/Mung PATENTED NOV. 29. 1904.

V. H. SLINACK. INGANDBSGENT STREET. LIGHT.

APPLICATION FILED DEC. 6, 1901. RENEWED JULY 25. 1904.

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no MODEL.

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STATS Patented November 29, 1904.

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VICTOR H. SLINAOK, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THEPENNSYLVANIA GLOBE GAS LIGHT COMPANY, OF PHILADEL- PHIA, PENNSYLVANIA, ACORPORATION OF PENNSYLVANIA.

INCANDESCENT STREET-LIGHT.

SPECIFICATION forming part of Letters Patent No. 776,360, dated November29, 1904.

Application filed December 6, 1901. Renewed July 25, 1904. Serial No.217,939.

To all whomit 'mrty concern.-

Be it known that I, VICTOR H. SLINAOK, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inWelsbach and other Incandescent Street-Lights, of which the following isa specification.

The principal object of the invention is to provide a VVelsbach or otherincandescent street-light in which dust, bugs, insects, and the likewill be excluded from entering the Bunsen tube, and thus interferingwith the proper working of the burner.

Other objects are to provide for simultaneously controlling theadmission of gas and air to the Bunsen tube and for effecting suchoperations from a single point easily accessible to the operator.

To the ends stated the invention consists in the improvementshereinafter described, and pointed out in the claims.

The nature, characteristic features, and scope of the invention will bemore clearly understood from the following description, taken inconnection with the accompanying drawings, forming a part hereof, inwhich Figure 1 is an elevational View of the upper or head portion of aWVelsbach street-light embodying features of the invention. Fig. 2 is asectional view of the same, drawn to a larger scale, showing the generalarrangement of the parts. Fig. 8 is a plan view of the lantern-base, andFig. 4 is a sectional view of the Bunsen tube and its air shutter orcasing.

In the practice of the invention the Bunsen tube is extended into thesocket of the lantern-frame or the head of the lamp-post and made totake its supply of air from that which enters the post through thejoints and crevices thereof'for instance, through the head or socket ofthe post. The general construction, arrangement, and operations of theparts may be stated as follows.

Referring to the drawings, 1 indicates the gas-supply pipe, which forpurposes of the invention terminates inside the socket 2 of thelantern-frame, where it is provided with a gas-valve 3, which usuallyoccupies a position (No model.)

above the lantern-base. The lantern-socket 2 is in effect a continuationof the lamppost. The valve 3 is of the common plug type, and is arrangedto communicate with the needlevalve 4: and with the pilot or climbinglighter 5 in the well-known manner. The yoke 6, which supports theneedle-valve, also serves as a bottom support for the Bunsen tube 7, theconnecting parts being threaded for ready detachment. The Bunsen tubepasses through a ring or collar 8, which it supports, and which occupiesthe position above the lantern-base that is ordinarily assumed by thegas-valve. The Bunsen tube is extended at its base, where it is providedwith openings 9, through which more or less air is admitted to the tube,the supply being governed by an air-shutter consisting of aloosely-mounted shell or tubular casing 10, which closes that portion ofthe Bunsen tube between the yoke 6 and the collar 8. The tubular shutteror casing 10 is provided with a number of series of orifices 11, whichcan be made to register with the openings 9 of the Bunsen tube byimparting a slight rotary movement to the shutter.

The collar or member 8 is provided with a projecting pin or screw 12,which acts as a fulcrum for an operating-lever 13, having acircumscribed arc of movement that is defined by fingers 14, movableagainst a stop or detent15. Thelever 13 carries a pawl 16, which haspivotal connection therewith and can be made to engage the stop 15 tohold the lever in a depressed position. The lever 13 is operativelyconnected with a crank or arm 17 of the gas-valve by means of a link 18.The latter is provided with a projection 19, carrying a pin 20, which isarranged to work in an angular slot 21 of the air shutter or casing 10.Thus the lever 13 constitutes a common actuator for the means forcontrolling the supply of air and the means for controlling the supplyof gas.

In practice the operator thrusts his torch through the opening 22 of thelantern-base and pulls down the lever 13, in which lowered or depressedposition the lever 13 is held by the pawl 16, engaging the detent 15.Thus operated, the lever 13, through the instrumentality of the link 18,actuates the gas-valve to permit gas to flow to the pilot 5 and to theburner 23. At the same time the link 18, by reason of its pin-and-slotconnection with the tubular shell or air-shutter 10, serves to rotatethe same sufficiently to cause the openings 11 therein to register withthe openings 9 of the Bunsen tube and air is admitted to the latter fromthe post. Manifes'tly the gas-. supply is cut off and the air-shutteradjusted to close the openings in the Bunsen tube when the position ofthe lever 13 is reversed by tripping the pawl 16. The air shutter orcasing is a valuable adjunct, as it operates to effectually keep outdust and also bugs and insects, which during the day congregate insidethe post. At night of course they are attracted by the light of theburner and make their way toward the same, so that there is little or nodanger of their trying to enter the Bunsen tube.

The needle-valve 4 can be adjusted manually through an opening in thepost that may be closed in any convenient manner-for instance, by thedoor 26. (Shown in Fig. l.)

The lantern-base is provided with means for adjustably supporting thedraft-tube 24:, the

latter being guided on a rod 25, adjustably supported by the collar 8.

It will be obvious to those skilled in the art to which the inventionappertains that modilications may be made in details without departingfrom the spirit and scope of the same. Hence I do not limit myself tothe precise construction and arrangement of parts hereinabove describedand illustrated in the accompanying drawings; but,

Having described the nature and objects of the invention, what I claimas new, and desire to secure by Letters Patent, is

1. In a street-light, the combination of a lamp-post having a lanternthe socket of which constitutes a continuation of the post, a Bunsentube having its air-inlet arranged interior of the lantern-socket,gas-supply connections, and means for controlling the supply of gas andair from a point outside the post, substantially as described.

2. In a street-light, the combination of a lamp-post having alantern thesocket of which constitutes a continuation of the post, a Bunsen tubehaving its air-inlet arranged interior of the lantern-socket, gas-supplyconnections, and means for simultaneously controlling the supply of gasand air from a point outside the post, substantially as described.

3. In a street-light, the combination of a lamp-post having a lantern, aBunsen tube extending into the socket of the lantern and arranged totake air therefrom, gas-supply connections, means for controlling thesupply of gas and air, and an actuator for said means, substantially asdescribed.

4. In a street-light, the combination of a lamp-post having a lanternthe socketof which constitutes a continuation of the post, anincandescent burner within the lantern, a Bunsen tube extending intosaid socket and arranged to take air therefrom, an air-shutter for saidBunsen tube, gas-supply connections, means for adjusting said shutter,means for controlling the supply of gas, and a common actuator for bothof said means, located above the lantern-base, substantially asdescribed.

5. In a street-light, the combination of a lamp-post having a lanternthe socket of which constitutes a continuation of the post, a Bunsentube extending into said socket and taking air therefrom, anair-shutter, gas-supply connections, means for adjusting said shutter,means for controlling the supply of gas, a common actuator for both ofsaid means, located exterior of the post, and an opening in saidlantern-socket closed by a door to afford access to the interior of thepost, substantially as described. Y

6. In a street-light, the combination of a lamp-post having a lanternthe socket of which constitutes a continuation of the post, a Bunsentube extending into said socket and arranged to take air therefrom, atubular shutter for the Bunsen tube, gas-supply connections, and meansfor operating said shutter to open or close the Bunsen tube, and forsimultaneously controlling the flow of gas, substantially as described.

7. In a street-light, the combination of a lamp-post having a lanternthe socket of which constitutes a continuation of the post, a Bunsentube extending into said socket and arranged to take air therefrom, anair-shutter for the Bunsen tube, gas-supply connections, an actuatorlocated above the lantern-base, and means operated thereby for adjustingthe shutter and for controlling the supply of gas, substantially asdescribed.

8. In a street-light, the combination of a lamp-post having a lanternthe socket of which constitutes a continuation of the post, aburnerwithin the lantern, a Bunsen tube extending into said socket andarranged to take air therefrom, a tubular shell or casing surroundingsaid Bunsen tube and operating to control the admission of air to saidtube, gas-supply connections located interior of the post, a pilotextending from said connections to the burner, a lever pivotallysupported above the lanternbase, and means operated thereby foradjusting said casing to open or close the Bunsen tube and forsimultaneously controlling the admission of gas, substantially asdescribed.

In testimony whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

VICTOR H. SLINACK.

Vitnesses:

W. J. J AGKSON, K. M. GILLIGAN.

IIO

